CN105525123A - Preparation method for high-porosity foamy copper - Google Patents
Preparation method for high-porosity foamy copper Download PDFInfo
- Publication number
- CN105525123A CN105525123A CN201510761578.3A CN201510761578A CN105525123A CN 105525123 A CN105525123 A CN 105525123A CN 201510761578 A CN201510761578 A CN 201510761578A CN 105525123 A CN105525123 A CN 105525123A
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- China
- Prior art keywords
- preparation
- copper
- high porosity
- porosity
- foam copper
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/08—Alloys with open or closed pores
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/08—Alloys with open or closed pores
- C22C1/083—Foaming process in molten metal other than by powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
Abstract
The invention relates to the technical field of rare metal material preparation, in particular to a preparation method for high-porosity foamy copper. The preparation method for the high-porosity foamy copper comprises the following steps: performing soaking treatment on a polyurethane sponge by adopting an NaOH (sodium hydroxide) solution, blending copper powder, water, a binding agent, a dispersing agent, a surface active agent and aqueous ammonia into slurry, standing for 24h at room temperature, repeatedly impregnating the sponge so as to remove redundant slurry, drying to obtain a foam green body, and roasting to decompose the polyurethane sponge; meanwhile, oxidizing copper in the air to form a copper oxide foam; putting the copper oxide foam under high vacuum to decompose a metal oxide, and sintering to obtain the high-porosity foamy copper with a through hole structure. The preparation method has a simple process, is controllable in porosity and low in cost, and has no high requirements on equipment; moreover, the high-porosity foamy copper prepared by the method has good performance, is suitable for being used industrially and can be easily popularized widely.
Description
Technical field
The present invention relates to Rare Metals Materials preparing technical field, be specifically related to a kind of preparation method of high porosity foam copper.
Background technology
Porous metal are a kind of new engineering material having function and structure double attribute concurrently developed rapidly in the world over nearly 20 years.This material combines low density, high rigidity, impacts energy-absorbing, sound-deadening and noise-reducing, electromagnetic shielding, air-and water-permeable, lower thermal conductivity and good damping characteristic, is therefore widely used in the industries such as space flight, aviation, nuclear power, environmental protection and electrochemistry.The preparation method of porous metal is rich will comprise casting, foaming, deposition, sintering etc.From developing direction, wide aperture (cm) solid netted and small-bore (um), low density high voidage foamed metal be the emphasis that technology of preparing breaks through, Chinese scholars has done the much work differed from one another in this regard.The foamed metal of porous through-hole structure obtains by methods such as multiple die cast, deposition (galvanic deposit and vapour deposition) or solid frameworks, but these methods all exist the shortcomings such as complex process, cost is high, material selection range is narrow.
Summary of the invention
The present invention is intended to propose a kind of method that polyurethane sponge method of impregnation prepares high porosity foam copper.
Technical program of the present invention lies in:
A preparation method for high porosity foam copper, adopts following steps:
Polyurethane sponge adopts NaOH solution to do immersion treatment, copper powder, water, binding agent, dispersion agent, tensio-active agent and ammoniacal liquor is modulated into slurry, left at room temperature 24h, sponge is infiltrated repeatedly, remove additional size, form foams biscuit after dry, through roasting, polyurethane sponge is decomposed; Meanwhile, copper is oxidized in atmosphere and forms cupric oxide foams, by under cupric oxide foams high vacuum, metal oxide is decomposed, and sinters, and namely obtains the foam copper of high porosity through-hole structure.
Preferably, described polyurethane sponge uniform foam cell also has high opening rate, chooses in Beijing Pao Mian main office.
Preferably, polyvinyl alcohol selected by described binding agent, and volume fraction is 10%.
Preferably, described dispersion agent selects 5% methylcellulose gum (MC) solution.
Preferably, the massfraction of described ammoniacal liquor is 1%.
Preferably, described copper powder is red copper powder, and purity is 99.7%, and granularity is 4.5 ~ 38 μm, and powder particle is sheet, chooses in Shanghai Dan Di metallic substance company limited.
Or preferably, described will make metal oxide decompose the method adopting heat under cupric oxide foams high vacuum, temperature is 900 DEG C.
Or the temperature of preferably, described sintering is 950 DEG C.
Or preferably, described NaOH solution volume fraction is 4%.
Technique effect of the present invention is:
Present invention process is simple, porosity is controlled, with low cost, not high to equipment requirements, and by the high porosity foam copper excellent property that present method is made, be applicable to industrial use, be easy to promote on a large scale.
Embodiment
A preparation method for high porosity foam copper, adopts following steps:
Polyurethane sponge adopts NaOH solution to do immersion treatment, copper powder, water, binding agent, dispersion agent, tensio-active agent and ammoniacal liquor is modulated into slurry, left at room temperature 24h, sponge is infiltrated repeatedly, remove additional size, form foams biscuit after dry, through roasting, polyurethane sponge is decomposed; Meanwhile, copper is oxidized in atmosphere and forms cupric oxide foams, by under cupric oxide foams high vacuum, metal oxide is decomposed, and sinters, and namely obtains the foam copper of high porosity through-hole structure.
Wherein, polyurethane sponge uniform foam cell also has high opening rate, chooses in Beijing Pao Mian main office.Polyvinyl alcohol selected by binding agent, and volume fraction is 10%.Dispersion agent selects 5% methylcellulose gum (MC) solution.The massfraction of ammoniacal liquor is 1%.Copper powder is red copper powder, and purity is 99.7%, and granularity is 4.5 ~ 38 μm, and powder particle is sheet, chooses in Shanghai Dan Di metallic substance company limited.To metal oxide be made under cupric oxide foams high vacuum to decompose the method adopting heat, temperature be 900 DEG C.The temperature of sintering is 950 DEG C.NaOH solution volume fraction is 4%.
Claims (9)
1. a preparation method for high porosity foam copper, is characterized in that: adopt following steps:
Polyurethane sponge adopts NaOH solution to do immersion treatment, copper powder, water, binding agent, dispersion agent, tensio-active agent and ammoniacal liquor is modulated into slurry, left at room temperature 24h, sponge is infiltrated repeatedly, remove additional size, form foams biscuit after dry, through roasting, polyurethane sponge is decomposed; Meanwhile, copper is oxidized in atmosphere and forms cupric oxide foams, by under cupric oxide foams high vacuum, metal oxide is decomposed, and sinters, and namely obtains the foam copper of high porosity through-hole structure.
2. as the preparation method of a claim 1 high porosity foam copper, it is characterized in that: described polyurethane sponge uniform foam cell also has high opening rate, chooses in Beijing Pao Mian main office.
3. as the preparation method of a claim 1 high porosity foam copper, it is characterized in that: polyvinyl alcohol selected by described binding agent, volume fraction is 10%.
4. as the preparation method of a claim 1 high porosity foam copper, it is characterized in that: described dispersion agent selects 5% methylcellulose gum (MC) solution.
5. as the preparation method of a claim 1 high porosity foam copper, it is characterized in that: the massfraction of described ammoniacal liquor is 1%.
6. as the preparation method of a claim 1 high porosity foam copper, it is characterized in that: described copper powder is red copper powder, purity is 99.7%, and granularity is 4.5 ~ 38 μm, and powder particle is sheet, chooses in Shanghai Dan Di metallic substance company limited.
7. as the preparation method of a claim 1 high porosity foam copper, it is characterized in that: described will make metal oxide decompose the method adopting heat under cupric oxide foams high vacuum, temperature is 900 DEG C.
8. as the preparation method of a claim 1 high porosity foam copper, it is characterized in that: the temperature of described sintering is 950 DEG C.
9. as the preparation method of a claim 1 high porosity foam copper, it is characterized in that: described NaOH solution volume fraction is 4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761578.3A CN105525123A (en) | 2015-11-11 | 2015-11-11 | Preparation method for high-porosity foamy copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761578.3A CN105525123A (en) | 2015-11-11 | 2015-11-11 | Preparation method for high-porosity foamy copper |
Publications (1)
| Publication Number | Publication Date |
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| CN105525123A true CN105525123A (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510761578.3A Pending CN105525123A (en) | 2015-11-11 | 2015-11-11 | Preparation method for high-porosity foamy copper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886820A (en) * | 2016-05-06 | 2016-08-24 | 陈昌 | Porous foamy copper material and production method thereof |
| CN106086779A (en) * | 2016-06-06 | 2016-11-09 | 王华胜 | A kind of micro-or nano size circulation aperture cellular solid and preparation method thereof |
| CN107641729A (en) * | 2017-09-29 | 2018-01-30 | 成都新柯力化工科技有限公司 | A kind of method that liquid polymer auxiliary foaming prepares foam metal material |
| EP3626371A4 (en) * | 2017-05-16 | 2020-03-25 | LG Chem, Ltd. | Method for manufacturing metal foam |
| CN112295316A (en) * | 2020-09-23 | 2021-02-02 | 常州康浩高分子材料科技有限公司 | Preparation method of high-porosity foamed nickel filter material |
-
2015
- 2015-11-11 CN CN201510761578.3A patent/CN105525123A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886820A (en) * | 2016-05-06 | 2016-08-24 | 陈昌 | Porous foamy copper material and production method thereof |
| CN106086779A (en) * | 2016-06-06 | 2016-11-09 | 王华胜 | A kind of micro-or nano size circulation aperture cellular solid and preparation method thereof |
| EP3626371A4 (en) * | 2017-05-16 | 2020-03-25 | LG Chem, Ltd. | Method for manufacturing metal foam |
| JP2020519768A (en) * | 2017-05-16 | 2020-07-02 | エルジー・ケム・リミテッド | Metal foam manufacturing method |
| JP7191390B2 (en) | 2017-05-16 | 2022-12-19 | エルジー・ケム・リミテッド | METHOD OF MANUFACTURING METAL FOAM |
| CN107641729A (en) * | 2017-09-29 | 2018-01-30 | 成都新柯力化工科技有限公司 | A kind of method that liquid polymer auxiliary foaming prepares foam metal material |
| CN107641729B (en) * | 2017-09-29 | 2019-12-10 | 泰州亿丰达电器有限公司 | method for preparing foam metal material by liquid polymer auxiliary foaming |
| CN112295316A (en) * | 2020-09-23 | 2021-02-02 | 常州康浩高分子材料科技有限公司 | Preparation method of high-porosity foamed nickel filter material |
| CN112295316B (en) * | 2020-09-23 | 2022-03-08 | 常州康浩高分子材料科技有限公司 | Preparation method of high-porosity foamed nickel filter material |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160427 |